Home / 21,918,840.80-32,941,246.80-19,147,474.40

Finding the Fourth Proportional to 21,918,840.80, 32,941,246.80 and 19,147,474.40

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Solution

The fourth proportional to 21,918,840.80, 32,941,246.80 and 19,147,474.40 is: 28,776,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918,840.80 : 32,941,246.80 = 19,147,474.40 : x
  2. Step 2: Convert to fraction form
    21,918,840.80/32,941,246.80 = 19,147,474.40/x
  3. Step 3: Cross multiply
    21,918,840.80x = 32,941,246.80 × 19,147,474.40
  4. Step 4: Simplify right side
    21,918,840.80x = 630,741,679,807,081.88
  5. Step 5: Solve for x
    x = 630,741,679,807,081.88/21,918,840.80
  6. Step 6: Final answer
    x = 28,776,233.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.